import matplotlib.pyplot as plt

# 数据整理
labels = ['Administration Expense', 'Research and Development Expense', 'Financial Expense']
sizes = [430652863.08, 43762675.18, 70446083.68]  # 单位：元
colors = ['gold', 'yellowgreen', 'lightcoral']
explode = (0.1, 0, 0)  # 突出显示第一个切片（Administration Expense）

# 绘制饼状图
plt.pie(sizes, explode=explode, labels=labels, colors=colors,
        autopct='%1.1f%%', shadow=True, startangle=140)

# 确保饼图是圆形的
plt.axis('equal')

# 添加标题
plt.title('Expense Distribution for 2023')

# 显示图表
plt.show()